1//===-- Utility class to test the isnan macro [f|l] -------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license nanormation.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLVM_LIBC_TEST_INCLUDE_MATH_ISNAN_H
10#define LLVM_LIBC_TEST_INCLUDE_MATH_ISNAN_H
11
12#include "test/UnitTest/FPMatcher.h"
13#include "test/UnitTest/Test.h"
14
15#include "include/llvm-libc-macros/math-function-macros.h"
16
17template <typename T> class IsNanTest : public LIBC_NAMESPACE::testing::Test {
18
19 DECLARE_SPECIAL_CONSTANTS(T)
20
21public:
22 typedef int (*IsNanFunc)(T);
23
24 void testSpecialNumbers(IsNanFunc func) {
25 EXPECT_EQ(func(zero), 0);
26 EXPECT_EQ(func(neg_zero), 0);
27 EXPECT_EQ(func(aNaN), 1);
28 EXPECT_EQ(func(sNaN), 1);
29 }
30};
31
32#define LIST_ISNAN_TESTS(T, func) \
33 using LlvmLibcIsNanTest = IsNanTest<T>; \
34 TEST_F(LlvmLibcIsNanTest, SpecialNumbers) { \
35 auto isnan_func = [](T x) { return func(x); }; \
36 testSpecialNumbers(isnan_func); \
37 }
38
39#endif // LLVM_LIBC_TEST_INCLUDE_MATH_ISNAN_H
40

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source code of libc/test/include/IsNanTest.h